A control system for a dual fuel engine that can operate in either dual fuel mode or in diesel only mode includes two controllers. Thus, the processing of pilot substrates may be reduced or the processing of the pilot substrates may be initiated on the basis of reliably established process parameters. 4\xb0 to a patient in need thereof. In addition, since according to the invention, only three new transistors are required, the modification of the invention is space efficient and readily incorporated into existing designs. The transmission power level for a communication from the base station is based in part on weighting the path loss estimate in response to the estimate’s quality.